package li.com.ruiji.config;

import com.github.xiaoymin.knife4j.spring.annotations.EnableKnife4j;
import li.com.ruiji.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import springfox.documentation.RequestHandler;
import springfox.documentation.builders.ApiInfoBuilder;
import springfox.documentation.builders.PathSelectors;
import springfox.documentation.builders.RequestHandlerSelectors;
import springfox.documentation.service.ApiInfo;
import springfox.documentation.spi.DocumentationType;
import springfox.documentation.spring.web.plugins.Docket;
import springfox.documentation.swagger2.annotations.EnableSwagger2;

import java.util.List;

@Slf4j
@Configuration
@EnableSwagger2    // ↓这两个注解表示开启了Swagger注解功能
@EnableKnife4j
public class WebMvcConfig extends WebMvcConfigurationSupport {

    @Override
    protected void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
        registry.addResourceHandler("doc.html").addResourceLocations("classpath:/META-INF/resources/");
        registry.addResourceHandler("/webjars/**").addResourceLocations("classpath:/META-INF/resources/webjars/");
        log.info("静态资源加载成功...");
    }
    //    扩展mvc消息框架的消息转换器

    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
//        创建消息转换器对象
        MappingJackson2HttpMessageConverter messageConverter=new MappingJackson2HttpMessageConverter();
//        设置对象转换器，底层使用Jackson将java对象转为json
        messageConverter.setObjectMapper(new JacksonObjectMapper());
//        将上面的消息转换器对象追加到mvc框架的转换器集合中,前面的 0 表示放到集合下标 0 的位置，放后面可能不会调用
        converters.add(0,messageConverter);
    }

//    API文档
    @Bean
    public Docket createRstApi(){
        return new Docket(DocumentationType.SWAGGER_2)
                .apiInfo(apiInfo())
                .select()
                .apis(RequestHandlerSelectors.basePackage("li.com.ruiji.controller"))
                .paths(PathSelectors.any())
                .build();

    }

    private ApiInfo apiInfo(){
        return new ApiInfoBuilder()
                .title("瑞吉外卖")
                .version("1.0")
                .description("瑞吉外卖接口文档")
                .build();
    }

}
